I am seeing same symptoms in Ubuntu Studio 13.10 Final Beta 2. This uses xfce4 so this issue may not be gnome-screensaver specific. I believe this could be classed as a security issue because it occurs after sleep, before screen lock kicks in, so a user may have put the machine to sleep expecting it to be (fairly) secure but another user may subsequently see the desktop (and any open document). As a minimum it is a privacy issue.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/955915 Title: screensaver shows old screen content on return from sleep Status in “gnome-screensaver” package in Ubuntu: Confirmed Bug description: when gnome-screensaver activates after an idle period, and so then the screen blanks, then pushing the shift key to wake the monitors and to request that gnome-screensaver display an authentication box sometimes causes the old screen (pre-lock) to display briefly before the screen redraws blank with an authentication box. One can't interact with the old display, and it's brief, no more than a second before repaint, but from a privacy standpoint it's disturbing that the content is briefly visible. I have gnome-screensaver configured to blank the screen on idle rather than to display pictures or animations. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: gnome-screensaver 3.2.0-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-16.29-generic 3.0.20 Uname: Linux 3.0.0-16-generic x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 Date: Thu Mar 15 12:38:18 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) ProcEnviron: PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: gnome-screensaver UpgradeStatus: Upgraded to oneiric on 2012-01-09 (66 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/955915/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
